I am a breast cancer survivor. It has been almost 3 years with no recurrence. I have been on tamoxifen 20mg in that time. Recently I have had some pelvic pain as though I had my period, cramping, no bleeding. Iam 52 years old and post-menopausal. I had a pelvic ultrasound done 3 weeks ago and they found endometrium thickening of 11mm. and a complicated cyst, no fluid seen. I am so worried that this may be a form of cancer . I go to the gynecologist in a week. What can I expect from the gynocologist? Will there be a biopsy? Am I looking at surgery? I know you can't really say too much but any information would be helpful. This waiting is killing me.